景东南星 jing dong nan xing

Arisaema cangshanense X. D. Dong.

Tuber subglobose, ca. 2.5 cm in diam. Cataphylls 3, pale green with purple spots, to 30 cm. Leaf solitary; petiole greenish, unmarked, ca. 65 cm, proximal 3/4 sheathing into pseudostem; leaf blade radiate; leaflets 7, sessile, pale green abaxially, deep green adaxially, oblong-lanceolate, 7-8 × 1.4-1.6 cm, margin entire, apex acuminate. Peduncle shorter than petioles, ca. 55 cm × 2.5-3 mm. Spathe yellowish, without white stripes; tube cylindric, ca. 4 cm × 9 mm, recurved at throat; limb arching, triangular-oblong, ca. 7.5 × 3 cm, apex acuminate with a filiform tail 4-5 cm. Spadix unisexual; male zone ca. 3 cm; synandria dense; appendix hidden in spathe tube, orange-yellow, clavate, ca. 3.5 cm × 4 mm, smooth, apex obtuse. Female spadix unknown. Fl. Jun.

● Evergreen broad-leaved forests; 2400-2500 m. Yunnan (Diancang Shan, Jingdong).